Â I had mixed up blue-violet paint with gel retarder for a block print, so I rolled out the rest of it and used some rubber-tipped tools to scrape away branches, forming the monoprint of a bare-leafed tree.

Analysts also said LG's recent release of 3D TVs using its new display technology, called film-patterned retarder, or FPR, and a seasonally higher demand for air-conditioners, will help boost the company's overall earnings in the current quarter.

Halliburton said that the final test in April was performed on a slurry formulation that included eight gallons of retarder per 100 sacks of cement and that the test showed that the foam mixture was stable.